Finding the Fourth Proportional to 19,818.52, 29,550.59 and 19,274.20

Step by Step Solution

1. Step 1: Write the proportion equation
   19,818.52 : 29,550.59 = 19,274.20 : x
2. Step 2: Convert to fraction form
   19,818.52/29,550.59 = 19,274.20/x
3. Step 3: Cross multiply
   19,818.52x = 29,550.59 × 19,274.20
4. Step 4: Simplify right side
   19,818.52x = 569,563,981.78
5. Step 5: Solve for x
   x = 569,563,981.78/19,818.52
6. Step 6: Final answer
   x = 28,738.98